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Isothiocyanates and Their Synthetic Producers. VIII. The Synthesis and the Study of Spectral Features of Substituted Monothiourethanes

A. Brutovská and P. Kristián

Department of Organic Chemistry, P. J. Šafárik University, Košice

 

Abstract: A thioacylation of the proper amines to yield 20 substituted monothiourethanes, 16 of which were so far not reported, is described. Interpretation of infrared spectra of compounds thus synthesized makes it possible to ascribe in the case of aromatic monothiourethanes 3 characteristic absorption bands at 1520, 1360 and 930 cm-1 to the - N H - C = S group. Ultraviolet absorption spectra of monothiourethanes reveal in the 220 —360 nm region an intense absorption band that could be associated with tho so called ,,N" conjugation of the chromophore system - N H - C = S . The influence of the substituent on tho localization and character of tho absorption bands is discussed.

Full paper in Portable Document Format: 2310a736.pdf

 

Chemical Papers 23 (10) 736–745 (1969)

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